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Revision 1.7 by root, Mon Nov 3 16:28:38 2003 UTC vs.
Revision 1.68 by root, Mon Oct 23 17:52:37 2006 UTC

1#!/opt/bin/perl 1#!/opt/bin/perl
2
3use Cwd ();
4use Encode ();
2 5
3use Gtk2 -init; 6use Gtk2 -init;
4use Gtk2::Gdk::Keysyms; 7use Gtk2::Gdk::Keysyms;
5 8
9use Gtk2::CV;
10
6use Gtk2::CV::ImageWindow; 11use Gtk2::CV::ImageWindow;
7use Gtk2::CV::Schnauzer; 12use Gtk2::CV::Schnauzer;
8 13
9$VERSION = 0.1; 14BEGIN {
15 require Gtk2::CV::Plugin;
16 require "$ENV{HOME}/.cvrc" if -r "$ENV{HOME}/.cvrc";
17}
10 18
19use Gtk2::CV::Plugin::NameCluster;
20use Gtk2::CV::Plugin::RCluster;
21
22Gtk2::Rc->parse (Gtk2::CV::find_rcfile "gtkrc");
23
24use File::Spec;
25
26my $mainwin;
11my $viewer; 27my $viewer;
28my $viewer_count;
29my $schnauzer;
30my $info;
31my $help;
12 32
13package cluster; 33my $schnauzer_idx = 0;
14 34
15use Glib::Object::Subclass Gtk2::Window; 35sub new_schnauzer {
36 my $s = new Gtk2::CV::Schnauzer;
16 37
17use Gtk2::SimpleList; 38 $s->signal_connect_after (key_press_event => \&std_keys);
18 39 $s->signal_connect (activate => sub {
19sub INIT_INSTANCE { 40 my $label = sprintf "%s (%d)",
20 my ($self) = @_; 41 (File::Spec->splitpath ($_[1]))[2],
21 42 -s $_[1];
22 $self->set_default_size (600, 400); 43 $info->set_label ($label);
23 44 $viewer->load_image ($_[1]) if $viewer; # TODO: error, or chose ANY viewer
24 my $vbox = new Gtk2::VBox;
25 $self->add ($vbox);
26
27 my $box = new Gtk2::HBox;
28 $vbox->add ($box);
29 $box->add (my $sw = new Gtk2::ScrolledWindow);
30 $sw->add (
31 $self->{list} = new Gtk2::SimpleList
32 "#" => "int",
33 "Name" => "text",
34 );
35
36 $box->add ($self->{schnauzer} = new Gtk2::CV::Schnauzer);
37
38 $self->{schnauzer}->signal_connect (activate => sub { $viewer->load_image ($_[1]) });
39
40 $self->{list}->get_column(0)->set_sort_column_id(0);
41 $self->{list}->get_column(1)->set_sort_column_id(1);
42
43 $self->{list}->signal_connect (cursor_changed => sub {
44 my $row = scalar +($_[0]->get_selection->get_selected_rows)[0]->get_indices;
45
46 my $k = $_[0]{data}[$row][1];
47 $k = $self->{cluster}{$k};
48
49 $self->{schnauzer}->set_files (
50 [sort map "$self->{path}/$_", @{$k->[1]}],
51 );
52
53 1;
54
55 }); 45 });
56}
57 46
58sub analyse { 47 Gtk2::CV::Plugin->call (new_schnauzer => $s);
59 my ($self, $path) = @_;
60 48
61 opendir my $dir, $path 49 $s
62 or die "$path: $!"; 50}
63 51
64 $self->{path} = $path; 52sub new_viewer {
53 my $self = new Gtk2::CV::ImageWindow;
65 54
66 my @files = map { 55 $viewer_count++;
67 my $str = $_;
68 $str =~ s/[\-_ ]+/ /g;
69 $str =~ s/\.[^\.]+//g;
70 [$str, $_]
71 }
72 grep !/\.(sfv|crc|par|par2)$/, readdir $dir;
73 56
74 my %cluster; 57 $self->set_title ("CV: Image");
75 58
76 my @regexps = ( 59 $self->signal_connect (key_press_event => sub {
77 [qr<\d+$>, qr<^(.+?)\ *(\d+)$>], 60 $viewer = $_[0];
78 [qr<\ \d+$>, qr<^(.+?)(\d+)\ +(\d+)$>],
79 );
80 61
81 for my $info (@regexps) { 62 my $key = $_[1]->keyval;
82 my $re = $info->[0]; 63 my $state = $_[1]->state;
83 for (@files) { 64
84 if ($_->[0] =~ $re && $_->[0] =~ $info->[1]) { 65 if ($state * "control-mask" && $key == $Gtk2::Gdk::Keysyms{c}) {
85 push @{ ($cluster{$1} ||= [ $info, []])->[1] }, $_->[1]; 66 my $viewer = new_viewer ();
67 $viewer->set_image ($_[0]->{image});
68 $viewer->show_all;
86 } 69 1
70 } else {
71 &std_keys
72 or $schnauzer->signal_emit (key_press_event => $_[1])
87 } 73 }
88 } 74 });
75 $self->signal_connect (delete_event => sub { $_[0]->destroy; 0 });
76 $self->signal_connect (destroy => sub {
77 $viewer = undef if $viewer == $_[0];
89 78
90 $self->{cluster} = \%cluster; 79 main_quit Gtk2 unless --$viewer_count;
91 80
92 while (my ($k, $v) = each %cluster) { 81 0
93 my $n = scalar @{$v->[1]};
94 push @{$self->{list}{data}}, [$n, $k] if $n > 2;
95 } 82 });
96}
97 83
98package main; 84 $self->signal_connect (button3_press_event => sub {
85 $mainwin->visible
86 ? $mainwin->hide
87 : $mainwin->show_all;
99 88
100sub new_schnauzer { 89 1
101 my $w = new Gtk2::Window; 90 });
102 $w->add (my $s = new Gtk2::CV::Schnauzer);
103 91
104 $s->signal_connect (activate => sub { $viewer->load_image ($_[1]) }); 92 Gtk2::CV::Plugin->call (new_imagewindow => $self);
105 $s->signal_connect (key_press_event => \&std_keys);
106 93
107 $s->set_dir ("."); 94 $self
108 $w->show_all;
109
110 $w;
111} 95}
112 96
113sub std_keys { 97sub std_keys {
114 my $key = $_[1]->keyval; 98 my $key = $_[1]->keyval;
99 my $state = $_[1]->state;
115 100
116 my $ctrl = grep $_ eq "control-mask", @{$_[1]->state}; 101 my $ctrl = $state * "control-mask";
117 102
118 if ($key == $Gtk2::Gdk::Keysyms{q}) { 103 if ($key == $Gtk2::Gdk::Keysyms{q}) {
119 main_quit Gtk2; 104 $viewer->destroy;
120 } elsif ($ctrl && $key == $Gtk2::Gdk::Keysyms{v}) { 105 } elsif ($ctrl && $key == $Gtk2::Gdk::Keysyms{v}) {
121 new_schnauzer; 106 my $w = new Gtk2::Window;
107
108 $w->set_role ("schnauzer");
109 $w->set_title ("CV: Schnauzer");
110 $w->add (my $s = new_schnauzer);
111 $s->set_dir (File::Spec->curdir);
112 $s->set_geometry_hints;
113 $w->show_all;
114
115 } elsif ($ctrl && $key == $Gtk2::Gdk::Keysyms{h}) {
116 unless ($help) {
117 require Gtk2::PodViewer;
118
119 $help = new Gtk2::Window;
120 $help->set_role ("help");
121 $help->set_title ("CV: Help");
122 $help->set_default_size (500, 300);
123 $help->signal_connect (delete_event => sub { $help->hide; 1 });
124
125 $help->add (my $sw = new Gtk2::ScrolledWindow);
126 $sw->add (my $h = new Gtk2::PodViewer);
127
128 #binmode DATA, ":utf8";
129 $h->load_string (do { local $/; <DATA> });
130 }
131
132 $help->show_all;
122 } else { 133 } else {
123 return 0; 134 return 0;
124 } 135 }
125 136
126 1; 137 1
127} 138}
128 139
129$viewer = new Gtk2::CV::ImageWindow; 140{
130$viewer->signal_connect (key_press_event => \&std_keys); 141 $viewer = new_viewer;
142 $::cur_viewer = $viewer;
143
144 $schnauzer = new_schnauzer;
145
146 $mainwin = new Gtk2::Window;
147 $mainwin->set_role ("main");
148 $mainwin->set_title ("CV");
149 $mainwin->add (my $vbox = new Gtk2::VBox);
131$viewer->signal_connect (delete_event => sub { main_quit Gtk2 }); 150 $mainwin->signal_connect (delete_event => sub { $mainwin->hide; 1 });
151
152 $vbox->add ($schnauzer);
153 $vbox->pack_end (my $frame = new Gtk2::Frame, 0, 0, 0);
154 $frame->add (my $hbox = new Gtk2::HBox 0, 0);
155 $hbox->pack_start ((new Gtk2::Label "Info: "), 0, 0, 0);
156 $hbox->pack_end (my $labelwindow = new Gtk2::EventBox, 1, 1, 0);
157 $labelwindow->add ($info = new Gtk2::Label);
158 $labelwindow->signal_connect_after (size_request => sub { $_[1]->width (0); 0 });
159 $info->set (selectable => 1, xalign => 0, justify => "left");
160
161 $schnauzer->set_geometry_hints;
162}
163
164if (@ARGV) {
165 my $show_first = sub {
166 $schnauzer->show_all;
167 $schnauzer->handle_key ($Gtk2::Gdk::Keysyms{space}, []);
132$viewer->show_all; 168 $viewer->show_all;
169 };
133 170
134my $cluster = new cluster; 171 @ARGV == 1 && -d $ARGV[0]
135 172 ? $schnauzer->set_dir (Glib::filename_to_unicode shift, $show_first)
136#$cluster->analyse ("/fs/samsung/store-anime-done"); 173 : $schnauzer->set_paths ([map Glib::filename_to_unicode $_, @ARGV], 1, $show_first);
137#$cluster->show_all; 174} else {
138 175 $schnauzer->set_dir (File::Spec->curdir, sub {
139#$viewer->set (path => "/fs/samsung/store-anime-done/yuumi_kazuaki_-_love_to_hajieki_to_sayonara_to_-_150.jpg"); 176 $mainwin->show_all;
140#$viewer->set (path => "/root/pix/kvvz.jpg"); 177 $viewer->show_all;
178 });
179}
141 180
142main Gtk2; 181main Gtk2;
143 182
183__DATA__
144 184
185=encoding utf-8
186
187=head1 NAME
188
189cv - a fast gtk+ image viewer loosely modeled after XV
190
191=head1 SYNOPSIS
192
193 cv [file...]
194
195=head1 FEATURES
196
197CV is supposed to work similar to the venerable XV image viewer, just
198faster. Why faster?
199
200=over 4
201
202=item * optimized directory scanning algorithm
203
204The directory scanning in CV uses some tricks that - on most modern
205filesystems - makes it possible to detect filetypes faster than stat()'ing
206every file. This makes CV suitable for directories with lots of files
207(10000+).
208
209This algorithm is quite unprecise - it doesn't make a difference between
210files, device nodes, symlinks and the like, and filetype detection is done
211using the file extension only.
212
213On the positive side, it is usually many orders of magnitude faster than
214traditional scanning techniques (good for directories with 10000 or
215100000+ files).
216
217=item * queuing for all time-consuming background tasks
218
219All tasks, such as unlinking files or generating thumbnails, that can be
220done in the background will be done so - no waiting required, even when
221changing directories.
222
223=item * use of asynchronous I/O
224
225CV tries to use asynchronous I/O whereever it makes sense, for example
226while scanning directories, waiting for stat data, unlinking files or
227generating thumbnails. This usually decreases scanning times for large
228directories a bit (especially on RAID devices and over NFS) and makes CV
229much more interactive.
230
231=item * fast image loading
232
233The time span between the user issuing a command and displaying the new
234image should be as small as possible. CV uses optimized (especially
235for JPEG) loading functions and sacrifices some quality (e.g no gamma
236correction, although this might change) to achieve this speed.
237
238=item * fast thumbnail creation
239
240Thumbnail creation uses both CPU and Disk-I/O. CV interleaves both, so
241on modern CPUs, thumbnailing is usually limited by I/O speed. Thumbnail
242creation for JPEGs has been specially optimized and can even take
243advantage of multiple CPUs.
244
245=item * minimum optical clutter
246
247CV has no menus or other user interface elements that take up a lot of
248screen space (or are useful for beginning users). The schnauzer windows
249can also be somewhat crowded.
250
251The point of an image viewer is viewing images, not a nice GUI. This is
252similar to XV's behaviour.
253
254=item * efficient (and hard to learn) user interface
255
256CV uses key combinations. A lot. If you are an experienced XV user, you
257will find most of these keys familiar. If not, CV might be hard to use at
258first, but will be an efficient tool later.
259
260=item * multi-window GUI
261
262CV doesn't force you to use a specific layout, instead it relies on your
263window manager, thus enabling you to chose whatever layout that suits you
264most.
265
266=item * i18n'ed filename handling throughout
267
268As long as glib can recognize your filename encoding (either UTF-8 or
269locale-specific, depending on the setting of G_BROKEN_FILENAMES) and you
270have the relevant fonts, CV will display your filenames correctly.
271
272=item * extensible through plug-ins
273
274I have weird plug-ins that access remote databases to find a
275directory. This is not likely to be of any use to other people. Likewise,
276others might have weird requirements I cannot dream of.
277
278=item * filename clustering
279
280Among the standard plug-ins is a filename clustering plug-in, that (in
281case of tens of thousands images in one directory) might be able to
282cluster similar names together.
283
284=back
285
286=head1 DESCRIPTION
287
288=head2 THE IMAGE WINDOW
289
290You can use the following keys in the image window:
291
292 q quit the program
293 < half the image size
294 > double the image size
295 , shrink the image by 10%
296 . enlarge the image by 10%
297 n reset to normal size
298 m maximize to screensize
299 M maximize to screensize, respecting image aspect
300 ctrl-m toggle maxpect-always mode
301 ctrl-sift-m toggle using current image size as max image size
302 u uncrop
303 r set scaling mode to 'nearest' (fastest)
304 s set scaling mode to 'bilinear' (default)
305 shift-s set scaling mode to 'hyper' (slowest)
306 t rotate clockwise 90°
307 T rotate counterclockwise°
308 a apply all rotations loslessly to a jpeg file (using exiftran)
309 ctrl-v open a new visual schnauzer window for the current dir
310 ctrl-c clone the current image window
311 ctrl-e run an editor ($CV_EDITOR or "gimp") on the current image
312 ctrl-p fire up the print dialog
313 escape cancel a crop action
314
315And when playing movies, these additional keys are active:
316
317 left rewind by 10 seconds
318 right forward by 10 seconds
319 down rewind by 60 seconds
320 up forward by 60 seconds
321 pg_up rewind by 600 seconds
322 pg_down forward by 600 seconds
323 o toggle on-screen display
324 p pause/unpause
325 escape stop playing
326 9 turn volume down
327 0 turn volume up
328
329Any other keys will be sent to the default schnauzer window, which can be
330toggled on and off by right-clicking into the image window.
331
332Left-clicking into the image window will let you crop the image (usually
333to zoom into large images that CV scales down).
334
335=head2 THE VISUAL SCHNAUZER
336
337Any image-loading action in a schnauzer window acts on the
338"last-recently-activated" imagewindow, which currently is simply the last
339image window that received a keypress.
340
341You can use the following keys in the schnauzer window:
342
343 ctrl-space,
344 space move to and display next image
345 ctrl-backspace,
346 backspace move to and display previous image
347 ctrl-return,
348 return display selected picture, or enter directory
349
350 cursor keys move selection
351 page-up move one page up
352 page-down move one page down
353 home move to first file
354 end move to last file
355
356 ctrl-a select all files
357 ctrl-shift-a select all files currently displayed in the schnauzer window
358 ctrl-d delete selected files WITHOUT ASKING AGAIN
359 ctrl-g force generation of thumbnais for the selected files
360 ctrl-s rescan current direcory or files updates/deletes etc.
361 ctrl-u update selected (or all) icons if neccessary
362 ctrl-l don't use, will become a plug-in eventually
363
364 ^ go to parent directory (caret).
365
366 0-9,
367 a-z find the first filename beginning with this letter
368
369Right-clicking into the schnauzer window displays a pop-up menu with
370additional actions.
371
372=head3 SELECTION
373
374You can select entries in the Schnauzer in a variety of ways:
375
376=over 4
377
378=item Keyboard
379
380Moving the cursor with the keyboard will first deselect all files and then
381select the file you moved to.
382
383=item Clicking
384
385Clicking on an entry will select the one you clicked and deselect all
386others.
387
388=item Shift-Clicking
389
390Shift-clicking will toggle the selection on the entry under the mouse.
391
392=item Dragging
393
394Dragging will select all entries between the one selected when pushing the
395button and the one selected when releasing the button. If you move above
396or below the schnauzer area while drag-selecting, the schnauzer will move
397up/down one row twice per second. In addition, horizontal mouse movement
398acts as a kind of invisible horizontal scrollbar.
399
400=item Hint: double-click works while click-selecting
401
402You can double-click any image while click-selecting to display it
403without stopping the selection process. This will act as if you normally
404double-clicked the image to display it, and will toggle the selection
405twice, resulting in no change.
406
407=back
408
409=head1 FILES
410
411When starting, CV runs the F<.cvrc> file in your F<$HOME> directory as if
412it were a perl script. in that, you will mostly load plug-ins.
413
414Example:
415
416 system "fping -q -t 10 ether"
417 or require "/fs/cv/cvplugin.pl";
418
419This will load a plug-in, but only if the machine I<ether> is reachable
420(supposedly the plug-in is networked in some way :).
421
422=head1 ENVIRONMENT
423
424=over 4
425
426=item CV_EDITOR
427
428The program that gets executed when the user presses C<CTRL-e> in the
429Schnauzer or image window. The default is C<gimp>.
430
431=item CV_PRINT_DESTINATION
432
433The default (perl-style) destination to use in the print dialog.
434
435=item CV_TRASHCAN
436
437When set, must point to a directory where all files that are deleted are
438moved to. If unset, files that are deleted are really being deleted.
439
440=back
441
442=head1 SECURITY CONSIDERATIONS
443
444CV uses Pixbuf to load non-JPEG images. Pixbuf is not considered safe for
445this purpose, though (from the gtk-2.2 release notes):
446
447"While efforts have been made to make gdk-pixbuf robust against invalid
448images, using gdk-pixbuf to load untrusted data is not recommended, due to
449the likelyhood that there are additional problems where an invalid image
450could cause gdk-pixbuf to crash or worse."
451
452=head1 BUGS/TODO
453
454 Lots of functionality is missing.
455
456 Pixbuf doesn't always honor G_BROKEN_FILENAMES, so accessing files with
457 names incompatible with utf-8 might fail.
458
459 rotate on disk
460 lots of ui issues
461 save(?)
462 preferences
463
464=head1 AUTHOR
465
466Marc Lehmann <cv@plan9.de>.
467
468=cut
469

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